| Herndon to Sacile | 4,356.32 mi (7,010.82 km) |
| Herndon to Sala Consilina | 4,689.14 mi (7,546.45 km) |
| Herndon to Salemi | 4,659.83 mi (7,499.28 km) |
| Herndon to Salerno | 4,641.55 mi (7,469.86 km) |
| Herndon to Salo | 4,285.52 mi (6,896.88 km) |
| Herndon to Salsomaggiore Terme | 4,287.64 mi (6,900.29 km) |
| Herndon to Saluzzo | 4,185.09 mi (6,735.25 km) |
| Herndon to Salzano | 4,354.84 mi (7,008.44 km) |
| Herndon to Samarate | 4,210.24 mi (6,775.72 km) |
| Herndon to San Benedetto del Tronto | 4,520.35 mi (7,274.80 km) |
| Herndon to San Biagio di Callalta | 4,360.82 mi (7,018.05 km) |
| Herndon to San Bonifacio | 4,324.02 mi (6,958.84 km) |
| Herndon to San Casciano in Val di Pesa | 4,378.67 mi (7,046.79 km) |
| Herndon to San Cataldo | 4,726.68 mi (7,606.85 km) |
| Herndon to San Cesareo | 4,513.66 mi (7,264.03 km) |
